Door hook



May 24, 1949-* I J. A. BIERWIRTH ET AL 2,471,089

DOOR HOOK Filed Deo. 26, 1947 Patented May 24, 1949 IE@ S TAT E S l iDOOR HOOK JohnA. Bierwirth and FritzKlaeden, Austin,` Tex, ApplicationDecember 2c, i947,:seriarncmsaa'zc 2 Claims. Cl. 292-114) This inventionrelates to improvements in door hooks, and more particularly to animproved iiexible or resilient hook for a door or other closure.

It is among the objects of the invention to 5 Hook I2 may beconveniently formed of heavy provide an improved hook for a door orother wire and is partly circular in shape, having an closure, whichhook is resiliently exible to hold angular extent materially greaterthan a semithe closure in tightly-shut condition, has a liincircle. Asillustrated, the rounded hook end I9 ited amount of stretch with apositive limit stop is spaced from the hook eye I8 by an amount sufsothat the closure cannot be forced open while 10 iicient only for thefree passage of the wire of the hook is in operative locking condition,is so screw eye I4 therethrough. constructed that it cannot accidentallylock when Strand I3 is illustrated as a chain of flat, the door isclosed, cannot be released by a thin slotted links 20 of U-shaped forminterconnected tool inserted between the door and door iamb by havingthe biglit portion of one link received from outside the door, and whichis of simple, in slots in the legs of an adjacent link. The slotsdurable and economical construction and neat are elongated so that thelinks may telescope and attractive in appearance. relative to each otherwhen the chain is un- Other objects and advantages will becomeapstretched. One end link receives the eye of Parent fl'Om aCOnSdBratiOn 0f the fOliOf/ille descrew eye II and the other end linkreceives the SCliDtion in conjunction with the accompanying eye I8 ofhook I2, so that the opposite ends of dri'vlng, ilivileleil Q f h k b1 uthe chain are pivotally secured to the screw eye igure is a p an view oa oo assern y i usand the hook, trative of the invention shown inoperative asso- Theehain has a length when stretched greater ciationwith a door and wall illustrated in fragthan the unser-etched length ofspring Iii by an meliialy Crees-Sectional View; a amount substantiallyequal to the inside diame- F lgul' e 2 1S an elevation Pf the hookassembly ter of the hook so that the spring can be stretched an@ Wallfragment shown lm -Flgufe l ghe heee to bring the hook into position toinsert its round- Spliflg and door fle'gn'lent bemg shown m emes ed endI9 in the eye of screw eye I4, as shown seeilon; in Figure 3, and whenreleased will bring the F lgur e 3 1S a' Vlevf Slmllar to Figure 2Showing 30 screw eye to the outer side of the hook, as shown tile. hookassembly m stretched or endednon" in Figure 2, and will exert aresilient closing gilr ceemrl'ement of the hook 1th an USO force on thedoor. The length of the chain is not' Figure 4 is a perspective view ofa fragmentary metbggsggtp Igrtlezdge of portion of a chain constitutinga component of J the improved hook assembly. While the flexiblestrandhas been shown as a With Continued reference to the drawing in specialform of chain, other forms such as different chains, a cable, or a link,may .be used which like numerals are used to designate the same partsthroughout the several views, the immthoit m any Way exceeding the Scopeof the proved hook assembly comprises, in general, a 40 mventlon coiledtension spring I0, a screw eye II pivotally The screw eyes H sind I4majy be 2f com/en" Connected to one end of the sprl-ng, a hook 2 tionalform, and adetailed description is not conpivotally connected to theopposite end of the elfered necessary for the purposes of the presenspring, a exible strand I3 connected at its opdisclosure posite ends tothe hook and the screw eye, and a The nVentlOn may be embodied in otherSleeserew eye |4 for engagement by the hook gg. cic forms withoutdeparting from the spirit or AS illustrated, the Screw eye is Set intothe essential characteristics thereof. The present door I5 and the screweye I4 is set into the wall embodiments are, therefore, t0 be COnSdredin I6, .but this arrangement may be reversed, if deall respects asillustrative and not restrictive, the sired, without affecting theutility of theA assem- SCOPE 0f the invention being indicated by the113- bly. Spring I0 may be a plain wire spring of pended claims ratherthan by the foregoing decoiled cylindrical form of a lengthsubstantially scription, and all changes which come within equal to theshank length of a conventional door the meaning and range 0f equivalencyOf in@ hook and having its end portions bent substanclaims are,therefore, intended to be embraced tially at right angles to its coilsto provide U- therein.

shaped hooks II at the opposite ends thereof. One of these hooks isengaged in the eye of screw eye II and the other is engaged in an eye I8formed on hook I2.

We claim:

1. A closure hook assembly comprising a coiled tension spring, a screweye pivotally secured to one end of said spring, a hook pivotallysecured to the opposite end of said spring, and a flexible strandextending through said spring and secured at its opposite ends to saidscrew eye and said hook, said hook being partly circular in form with anangular extent of more than a semi-circle and lhaving a spring-receivingeye on one end thereof, and said strand having a length when stretchedgreater than the unstretched length of said spring by an amountsubstantially equal to the inside diameter of said hook.

2. A closure hook tension spring, a screw eye plvotally secured to oneend of said spring, a hook having a springreceiving eye pivotallysecured to the opposite end of said spring, and a exible strandextending through said sprmg and connected at its opassembly comprisinga coiled posite ends to said screw eye and said hook eye, said hookbeing partly circular in form and having an angular extent greater thana semi-circle and said strand comprising a chain of flat, slotted,interconnected links having a length when stretched greater than theunstretched length of said spring by an amount substantially equal tothe inside diameter of said hook.

JOHN A. BIERWIRTH. FRITZ KLAEDEN.

REFERENCES CITED The following references are of record in the

